Though Johnson's approval ratings have fallen since the start of lockdown (+32% in April, -1% so far in July), he still has the backing of 2019 CON voters (only 15% Disapprove). So there's not many CON to LAB switchers.
A positive for LAB is that these switchers seem to be red-wall voters, rather than inner-city voters.
Starmer is an asset to LAB rather than a liability (Twitter would make you think otherwise). He has a net +20% approval compared to net ±0% approval for the Labour Party.
...but many voters that Labour needs to win over also approve of Johnson, so not many are switching. Most of Labours' ground gained since GE2019 has been from LD voters.
THREAD: BORN THIS DAY, 1925 Anthony Wedgwood Benn (better known as Tony Benn). Always outspoken, here are a few of his more memorable quotes... 1/
"The Labour party has never been a socialist party, although there have always been socialists in it - a bit like Christians in the Church of England." 2/
"There is no final victory, as there is no final defeat. There is just the same battle. To be fought, over and over again. So toughen up, bloody toughen up." 3/